Paper-sizing apparatus.



W. H. SANBURN.

PAPER SIZING APPARATUS.

APPLICATION FILED SEPT. 24. 1915.

134,154., PatentedSept. 11,1917.

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W. H. SANBU-RN'. PAPER slzmeAPeAmrus;

v APPLICATION FILED SEPT. 24, 1,915. x 1924G1-540 11,

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INVENTOR,

ATTORNEY.

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WILLIS H. SAINZBURN, 0F SPRINGFIELD, MASSACHUSETTS, ASSIGNOR T0 STRATHMORE PAPER COMPANY, OF MITTINEAGUE, MASSACHUSETTS, A CORPORATION.

PAPER-SIZING APPARATUS.

. Specification of Letters Patent.

Application filed September 24, 1915. Serial No. 52,357.

To all whom it may concern:

Be it known that I, WILLIS H. SANBURN, a citizen of the United States of America,

and resident of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Paper-Sizing Apparatus, of which the following is a full, clear, and exact desoription.

The object of this invention is to provide a sizing apparatus for paper by means of which the paper drawn from a roll or other supply may be engaged with guides therefor, which form part of the sizing apparatus, and which guides are movable so that in the preliminary engagement the paper is not caused by such guides to be immersed in the sizing liquid, but may be carried in running engagement through the sizing apparatus in its original or dry condition, and so that after having been so carried through, then by the movement of the guides downwardly, the paper is caused to have a course through the sizing liquid.

A further object of the invention is to provide anapparatus by means of whichthe paper may be sized in a better manner, and more properly in accordance with the nature of any given paper and in accordance with the desired character or extent of the sizing thereof,than heretofore.

The invention is described in congunction with the accompanying drawings and is set forth in the claims.

In the drawings:-

Figure 1 is a plan view and Fig. 2 is a sectional elevation of the sizin apparatus, the parts in section being taken on line 22, Fig. 1. a

Figs. 3 and 4: are respectively a partial side elevation and a partial plan view to more clearly illustrate one of the immersing rolls and the positioning means therefor.

Fig. "5 is a partial elevation for more clearly illustrating means for controlling the action of one set of the squeeze rolls.

Figs. 6, 7 and 8 are diagrammatic views to illustrate some of the innumerable ways in which the web of paper may be carried through the apparatus in accordance with different characters of papers and with different results or eflfects to be acquired. v

In the drawings, A represents an upwardly opening tank for liquid size into which the size is continuously pumped and permitted to overflow at the forward end so that a substantially uniform height or level of the size is maintained in the tank, as represented by the line a in Fig. 2.

Toward the forward end of the tank is a pair of squeeze rolls B, B, arranged above the liquid level and to run and to be driven in unison, as by means of driving belt and pulley as usual for companion rolls in many classes of machinery.

G and C represent upper and lower squeeze rolls located intermediately relatively to the length of the tank and adapted to be driven for their cooperation in any usual or approved manner.

The Web of paper is run through the sizing machine from asupply roll D, and, after the sizing and squeezing thereof, is guided to, and wound upon a take-up roll or reel indicated at E.

Means are provided for varying the portion of the running length of the web which is in immersion in the size in the tank.

Moreover, means are provided for causing the emergence of the web from the size in the tank whereby it may be squeezed above the level of the liquid by the intermediately located squeeze rolls C, C to have the excess size expelled therefrom whereupon it may be caused to have another immersion, and reemergence in and from the size previous to its final squeezing.

Therefore, the apparatus comprises transversely horizontal guide members a and b to the rear of the squeeze rolls 0, C and one or more transverse horizontal guide members d forward of such squeeze rolls, such guide members being mounted on movable supports on which any or all thereof may have positions of submersion in the size or elevated positions thereabove.

As here represented, the guide members a, b and d are constructed as rollers having the opposite journal end portions thereof mounted in the extremities of opposite lever-like arms 7 which are mounted for sides of the tank.

" The said lever-like arms 7 are affixed onpartial revoluble movements on opposite its partial revolution, as, for instance, the handle lever 71. formed, in substance, as an extension of the arm f. The handle lever extension Z1. is outwardly offset from the roll supporting lever f and rigidly connected therewith through the medium of a short transverse shaft 2' and constituting the aforementioned journal for the guide roll supporting arm f.

The bracket 9' in which. combined lever members f and bare iournaled, is made with a series of sockets k in circular arrangement, as shown in Fig. 3, and in any of which the locking member m carried by the handle lever k may engage and disen- As indicated, the locking member consists of a screw, having a thread engagement transversely through the handle lever and provided with a head or enlargement, by means of which it may be conveniently manually turned.

With reference to Figs. 2 6,, 7 and 8, some of the many various posltionings of the guiding members relatively to each other and to the intermediate and forward sets of squeeze rolls are shown.

In Fig. 6, the partially revoluble guide rolls are shown as swung to their upward positions as done preparatory to the engaging of the running web of paper in its dry condition through the machine; and the intermediate squeeze rolls 0, C are shown separated.

The paper, understood as coming in dry condition from the supply roll D, is engaged under the guide rolls a and b, thence passing over the'lower one C of the intermediate squeeze rolls, thence under the guide roll (1, over the fixed bar or roller .9 to and between the forward squeeze rolls B, B, thence passing over the elevated guide 0, to proceed to the guide ;0 and the reel E.

The paper easily carried through the apparatusin its dry condition, in its engagement under the rolls a, b and d, as shown in Fig. 6, or in engagement with any one or more of these rolls, may now be caused to have, as it runs, immersion in the liquid in the sizing tank by the downswinging of the revolubly movable. roll or rolls with which the paperhas its engagement.

In Fig. ,7, the paper having been giventhe running engagements while in dry condition represented in Fig. 6, is by the changed positions of the guide rolls a, b and d, and the lowering of the upper squeeze roll 0, caused-to receive an immersion, a squeezing, another immersion and a'final squeezing for a maximum absorption, or saturation and a maximum penetration of the paper by the sizea I In Fig. 2, positions of the parts are shown whereby the paper is caused to pass for immersion under thelowered roll 6, upwardly out from the liquid to pass between the separated squeeze rolls C, C and again under the lowered roller d and thence to and be- .tween the forward squeeze rolls B for the 0 which acts as a guide therefor, decending under the lowered guide roll 01, thence passing over the fixed guide bar or roll 8 around and between the forward squeeze rolls B,- receiving but one dip and but one squeezing with consequently but slight penetration.

In Figs. 2, 6, 7 and 8 the relative arrangement of the parts and themanner of utilization of the apparatus with the parts so arranged are those the advanta es of which are appreciableto a paper manu acturer, but, as manifest, the apparatus -is capable of utilization in different ways other than those shown so far as is concerned-the immersion of the paper in the size, extent and dnratlon from the supply over the upper squeeze roll in which the running length of the paper remains in immersion, and the squeezing or squeezings of the paper whereby the paper is caused to receive size, and to have the size forced by pressure into the web to accord with what may be the desirability or requirement on a run of any particular kind or grade.

Either or both sets of the squeeze rolls may have one roll thereofseparable relatively to the other roll, and as here shown the upper roll 0 of the intermediately located pair is separable relatively to the lower roll 0 by means as follows The journal bearing members If for the upper squeeze roll 0 has rack bars a associated, or made as one, therewith.

The journal members of the roll C hav vertical guide ways '0 therefor, formed in the opposite side brackets '0 J The transverse shaft 'w is provided in suitable journals at the upper part of the brackets '0 said shaft having a hand wheel 102 thereon and pinions w", all so that by the turning of the shaft through the hand wheel the roller C will be elevated, to leave a clear space between it and the one C or lowered for its pressure bearing in relation to the 4 roll C.

and S-shaped members formed by double reversely curved arms J J on the opposite ends, is provided, said arms having sultable boxes for the end journals of the cores of the supply rolls.

By suitable gearing, power driven, the shaft ,G'may be rotated as occasion requires so that after a supply roll which had been supported in the upper position shall have become exhausted, the revoluble doublearmed member may havea half a revolution imparted thereto to bring around another supply roll to the uppermost position.

This arrangement permits always a fresh supply roll to be mounted on what at a given time is the lower pair of arms J, while the paper of the supply roll supported by the upwardly extended pair of arms is being drawn off and caused to travel into, through, and out from the sizing liquid,-the matter of overturning the revoluble support for the positioning of a fresh roll in the place of an exhausted one being a matter of quick performance.

The reel or take-up roll E onto which the sized web is wound is mounted in bearings n a supporting frame L forwardly beyond which is a horizontal double trackway M sustained at a proper height by uprights M The rear end portions of the trackway M M are somewhat forward of the support for the reel so that a space 3 is open transversely of the machine between the reel and trackway to permit an operative of passing from one side of the machine to the other.

Each trackway comprises, double side members 1* 1- slightly separated so as to leave space for occupancy therebetween of bridging sections g which may be slid forwardly to .have positions as represented by the dotted lines in Figs. 1 and 2 to span the space 3 and to ma e the trackway continuous from the reel support to the trackway proper so that when a reel has taken thereon sized paper to its capacity or the extent desired, the reel or core may be displaced from its journal supports and rolled across the trackway sections having the temporary bridging positions and onto and forwardly along the main track, whereupon the bridging sections may be slid forwardly into the rear portions of the main trackwayf-leaving transverse space open.

An especially desirable and important capability and advantage of this sizing apparatus accrues from the character of the ides a, b and d, substantially such as exemplified in the drawings and referred to in the description thereof.

The paper in'its fully or partially dry condition to be sized becomes weak and of slight tensile strength upon being immersed in the liquid size; and it is a matter of extreme difliculty to carry the wet and weakened paper around under guide rods or rolls submerged in the tank; but as pointed out in respect of the position of the parts in advanced through the forward squeeze rolls to be mechanically advanced thereby, such of the guide rolls a, b, d, etc., are carried in their loweredand submerging positions and so remain during any given run of work.

I claim 1. In a paper sizing apparatus, an immersion tank, a pair of spaced rollers therein, and means swingingly mounting each roller independently of the other for swinging the roller down into and up out of the tank and toward and away from the companion roller whereby paper passing under said rollers may be immersed varying lengths and at varying depth and dispositions, and squeeze means arranged between said rollers, the latter being adjustable toward and from said squeeze means.

2. In a paper sizing apparatus, an immersion tank, a pair of spaced immersing rollers therein, means swingingly roller independently of the other for swinging the roller down into and up out of the tank and toward and away from the com panion roller whereby paper passing under said rollers may be immersed varying lengths and at varying depth and dispositions,.and a air of cooperating squeeze rolls toward and rom which said immersing roll ers are mounted for swinging said squeeze rolls being arranged between the immersing rollers.

3. In a paper sizing apparatus, an imersion tank, cooperating squeeze rolls mounted thereabove, and an immersing roller swingingly mounted on each side of said squeeze rolls for movement down into and up out of the tank and toward and from the squeeze rolls and each other.

Signed by me at Springfield, Mass, in

presence of two subscribing witnesses.

WILLIS H. SANBURN. Witnesses:

G. R. DRIsooLL, WM. F. Bnnnows.

mounting each 

